poi合并单元格的处理

1、获取真实的单元格行数

2、判断是否有合并行

package util;import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;import org.apache.commons.io.FileUtils;
import org.apache.poi.hslf.model.Sheet;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;import com.controller.GraphController;
import com.entity.Tree;public class EBom {//EBom格式的导入/*** 读取excel文件* * @param wb* @param sheetIndex sheet页下标：从0开始* @param startReadLine 开始读取的行:从0开始* @param tailLine 去除最后读取的行* @throws IOException * @throws InvalidFormatException *///String pid, File filepath, Tree rootpublic static Tree getHSSFSheet(String pid, File filepath, Tree root) throws Exception {root=new Tree();HSSFWorkbook workbook = new HSSFWorkbook(FileUtils.openInputStream(filepath));//读取默认的第一个工作表sheetHSSFSheet Hsheet = workbook.getSheetAt(0);//获取sheet中最后一行行号int lastRowNum = Hsheet.getLastRowNum();int realRowNum=0;for(int i=1;i<lastRowNum;i++){HSSFRow currentRow=Hsheet.getRow(i);int count=0;if(currentRow==null){realRowNum=i;break;}else{for(int j=0;j<=currentRow.getLastCellNum();j++){if(currentRow.getCell(j)!=null){if(currentRow.getCell(j).getStringCellValue()!=null&&!currentRow.getCell(j).getStringCellValue().isEmpty()){break;  }else{count++;}}}if(count==currentRow.getLastCellNum()){realRowNum=i-1;break;}}}//给root复制root.setId(pid);root.setPid("");root.setLevel(1);HashMap<String, List<Integer>> map=new HashMap<String, List<Integer>>();int node=0;int pNode=1;List<Tree> list=new ArrayList<>();list.add(root);for(int i=2;i < realRowNum; i++){HSSFRow row = Hsheet.getRow(i);//暂时给定11个单位的长度String value[]=new String[row.getLastCellNum()+1];String cValue[]=new String[11];String pName;Tree tree=new Tree();boolean isMerge = isMergedRegion(Hsheet, i, 0);//判断是否具有合并单元格if (isMerge) {pName = getMergedRegionValue(Hsheet, i, 0);} else {pName=SysUtil.toNumeric(Hsheet, i, 0);}for(int j=1;j<row.getLastCellNum();j++){value[j]=SysUtil.toNumeric(Hsheet, i, j);}//给value重新赋值cValue[0]=value[3];cValue[3]=value[1];cValue[4]=value[2];cValue[2]=value[4];cValue[5]=value[5];cValue[7]=value[6];cValue[8]=value[7];tree.setValue(cValue);if(map.get(pName)==null){//第二层级String[] pValue=new String[11];pValue[0]=pName;Tree p=new Tree();p.setLevel(2);p.setNode(pNode);p.setValue(pValue);p.setBg_color("#9BBACF");p.setType("ass");pNode++;list.add(p);List<Integer> v=new ArrayList<Integer>();node=1;v.add(node);map.put(pName,v);}else{List<Integer> v=map.get(pName); v.add(node++);map.put(pName, v);}tree.setBg_color("#D7DBDE");tree.setType("part");tree.setLevel(3);tree.setNode(node);tree.setValue(cValue);list.add(tree);}setValue(list);GraphController.merge(root,list);//将list集合转换成tree结构return root;}public static Tree getXSSFSheet(String pid, File filepath, Tree root) throws Exception {root=new Tree();XSSFWorkbook workbook = new XSSFWorkbook(FileUtils.openInputStream(filepath));//读取默认的第一个工作表sheetXSSFSheet Xsheet = workbook.getSheetAt(0);//获取sheet中最后一行行号int lastRowNum = Xsheet.getLastRowNum();int realRowNum=0;for(int i=1;i<lastRowNum;i++){XSSFRow currentRow=Xsheet.getRow(i);int count=0;if(currentRow==null){realRowNum=i;break;}else{for(int j=0;j<=currentRow.getLastCellNum();j++){if(currentRow.getCell(j)!=null){if(currentRow.getCell(j).getStringCellValue()!=null&&!currentRow.getCell(j).getStringCellValue().isEmpty()){break;  }else{count++;}}}if(count==currentRow.getLastCellNum()){realRowNum=i-1;break;}}}//给root复制System.out.println(pid);root.setId(pid);root.setPid("");root.setLevel(1);System.out.println("真实行："+realRowNum);HashMap<String, List<Integer>> map=new HashMap<String, List<Integer>>();int node=0;int pNode=1;List<Tree> list=new ArrayList<>();list.add(root);for(int i=2;i < realRowNum; i++){XSSFRow row = Xsheet.getRow(i);//暂时给定11个单位的长度String value[]=new String[row.getLastCellNum()+1];String cValue[]=new String[11];String pName;Tree tree=new Tree();boolean isMerge = isMergedRegion(Xsheet, i, 0);//判断是否具有合并单元格if (isMerge) {pName = getMergedRegionValue(Xsheet, i, 0);System.out.print(pName + " :");} else {pName=SysUtil.XssfToNumeric(Xsheet, i, 0);System.out.print(SysUtil.XssfToNumeric(Xsheet, i, 0) + "       ");}for(int j=1;j<row.getLastCellNum();j++){value[j]=SysUtil.XssfToNumeric(Xsheet, i, j);System.out.print(SysUtil.XssfToNumeric(Xsheet, i,j) + "       ");}System.out.println();//给value重新赋值cValue[0]=value[3];cValue[3]=value[1];cValue[4]=value[2];cValue[2]=value[4];cValue[5]=value[5];cValue[7]=value[6];cValue[8]=value[7];tree.setValue(cValue);if(map.get(pName)==null){//第二层级String[] pValue=new String[11];pValue[0]=pName;Tree p=new Tree();p.setLevel(2);p.setNode(pNode);p.setValue(pValue);p.setBg_color("#9BBACF");p.setType("ass");pNode++;list.add(p);List<Integer> v=new ArrayList<Integer>();node=1;v.add(node);map.put(pName,v);}else{List<Integer> v=map.get(pName); v.add(node++);map.put(pName, v);}tree.setBg_color("#D7DBDE");tree.setLevel(3);tree.setNode(node);tree.setValue(cValue);tree.setType("part");list.add(tree);}setValue(list);GraphController.merge(root,list);//将list集合转换成tree结构System.out.println(root);return root;}/*** 获取合并单元格的值* * @param sheet* @param row* @param column* @return*/public static String getMergedRegionValue(HSSFSheet sheet, int row, int column) {int sheetMergeCount = ((org.apache.poi.ss.usermodel.Sheet) sheet).getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress ca = ((org.apache.poi.ss.usermodel.Sheet) sheet).getMergedRegion(i);int firstColumn = ca.getFirstColumn();int lastColumn = ca.getLastColumn();int firstRow = ca.getFirstRow();int lastRow = ca.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {Row fRow = ((org.apache.poi.ss.usermodel.Sheet) sheet).getRow(firstRow);Cell fCell = fRow.getCell(firstColumn);return getCellValue(fCell);}}}return null;}/*** 获取合并单元格的值* * @param sheet* @param row* @param column* @return*/public static String getMergedRegionValue(XSSFSheet sheet, int row, int column) {int sheetMergeCount = ((org.apache.poi.ss.usermodel.Sheet) sheet).getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress ca = ((org.apache.poi.ss.usermodel.Sheet) sheet).getMergedRegion(i);int firstColumn = ca.getFirstColumn();int lastColumn = ca.getLastColumn();int firstRow = ca.getFirstRow();int lastRow = ca.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {Row fRow = ((org.apache.poi.ss.usermodel.Sheet) sheet).getRow(firstRow);Cell fCell = fRow.getCell(firstColumn);return getCellValue(fCell);}}}return null;}/*** 判断合并了行* * @param sheet* @param row* @param column* @return*/private boolean isMergedRow(Sheet sheet, int row, int column) {int sheetMergeCount = ((org.apache.poi.ss.usermodel.Sheet) sheet).getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress range = ((org.apache.poi.ss.usermodel.Sheet) sheet).getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (row == firstRow && row == lastRow) {if (column >= firstColumn && column <= lastColumn) {return true;}}}return false;}/*** 判断指定的单元格是否是合并单元格* * @param sheet* @param row 行下标* @param column 列下标* @return*/private static boolean isMergedRegion(HSSFSheet sheet, int row, int column) {int sheetMergeCount = ((org.apache.poi.ss.usermodel.Sheet) sheet).getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress range = ((org.apache.poi.ss.usermodel.Sheet) sheet).getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {return true;}}}return false;}private static boolean isMergedRegion(XSSFSheet sheet, int row, int column) {int sheetMergeCount = ((org.apache.poi.ss.usermodel.Sheet) sheet).getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress range = ((org.apache.poi.ss.usermodel.Sheet) sheet).getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {return true;}}}return false;}/*** 获取单元格的值* * @param cell* @return*/public static String getCellValue(Cell cell) {if (cell == null)return "";if (cell.getCellType() == Cell.CELL_TYPE_STRING) {return cell.getStringCellValue();} else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN) {return String.valueOf(cell.getBooleanCellValue());} else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA) {return cell.getCellFormula();} else if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) {return String.valueOf(cell.getNumericCellValue());}return "";}public static void main(String [] arg) throws Exception{File filepath=new File("d:/upload","EBOM.xls");Tree tree = new Tree();String pid="root";getHSSFSheet(pid,filepath,tree);}//赋值，id,pidpublic static void setValue(List<Tree>list){for(int i=1;i<list.size();i++){if(list.get(i).getLevel()>list.get(i-1).getLevel()){list.get(i).setPid(list.get(i-1).getId());list.get(i).setId(list.get(i-1).getId()+"_"+list.get(i).getNode());}else if(list.get(i).getLevel()<list.get(i-1).getLevel()){list.get(i).setPid(list.get(0).getId());list.get(i).setId(list.get(0).getId()+"_"+list.get(i).getNode());}else{list.get(i).setPid(list.get(i-1).getPid());list.get(i).setId(list.get(i).getPid()+"_"+list.get(i).getNode());}}}
}

2、判断是否是合并单元格

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